Looking into how to be more accurate with required exit counts. Here is a calculator walking through how the spirit of the code works. You get 50 occupants for your first exit door, after that you need two exits (with a 10x buff to 500 occupants).
Blended Occupant Load & Required Exits Calculator
10000
100
1
Occupant Load: 0 people
Required Exits: 0
Visualized…
Not that exiting… Though most buildings will only ever need 3 exits. A multifamily building less than 200,000′ would technically only require 3 exits per fire area. Fire areas are not easily that large. Type V would be >4 fire areas, and Type III north of 2.